我正在开发android中的地图服务,我想在我的地图中搜索像'Berlin'这样的特定地方。为此,我在我的地图中放置了一个EDITTEXT,每当我输入名称时,我想让我的地图中的那个地方用标记指向。
这是我的HelloItemizedOverlay类:
public class HelloItemizedOverlay extends ItemizedOverlay<OverlayItem>
{
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
private Context mContext;
public HelloItemizedOverlay(Drawable defaultMarker, Context context)
{
super(boundCenterBottom(defaultMarker));
mContext = context;
}
public void addOverlay(OverlayItem overlay)
{
mOverlays.add(overlay);
populate();
}
@Override
protected OverlayItem createItem(int i)
{
return mOverlays.get(i);
}
@Override
public int size()
{
return mOverlays.size();
}
@Override
protected boolean onTap(int index)
{
OverlayItem item = mOverlays.get(index);
AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
dialog.setTitle(item.getTitle());
dialog.setMessage(item.getSnippet());
dialog.show();
return true;
}
}
这是我的主要课程:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mapView = (MapView) findViewById(R.id.mapView);
mapSearchBox = (EditText)findViewById(R.id.search);
mapSearchBox.setOnTouchListener(new View.OnTouchListener(){
public boolean onTouch(View view, MotionEvent motionEvent) {
List<Address> addresses = geocoder.getFromLocationName(mapSearchBox.getText().toString(),5);
if(addresses.size() > 0)
{
GeoPoint p = new GeoPoint( (int) (addresses.get(0).getLatitude() * 1E6),
(int) (addresses.get(0).getLongitude() * 1E6));
controller.animateTo(p);
controller.setZoom(12);
List<Overlay> mapOverlays = mapView.getOverlays();
Drawable drawable = this.getResources().getDrawable(R.drawable.icon);
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable,this);
OverlayItem overlayitem = new OverlayItem(p,"","");
itemizedoverlay.addOverlay(overlayitem);
mapOverlays.add(itemizedoverlay);
mapView.invalidate();
mapSearchBox.setText("");
}
else
{
AlertDialog.Builder adb = new AlertDialog.Builder(GoogleMapActivity.this);
adb.setTitle("Google Map");
adb.setMessage("Please Provide the Proper Place");
adb.setPositiveButton("Close",null);
adb.show();
}
return false;
}});
LocationManager locationManager = (LocationManager) getSystemService(this.LOCATION_SERVICE);
LocationListener listener = new MylocationListener();
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0,0,listener);
}
这里我收到一行错误消息:
Drawable drawable = this.getResources().getDrawable(R.drawable.icon);
说新的View未定义getresource方法。 OnTouchListener;另外一个错误显示在下一行:
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable,this);
构造函数HelloItemizedOverlay未定义。
有人知道一个建议吗?如果是这样,请帮忙。在此先感谢!!
答案 0 :(得分:2)
从
中删除此 。this.getResources()getDrawable(R.drawable.icon);
看到它对你有帮助..
答案 1 :(得分:0)
而不是
this.getResources().getDrawable(R.drawable.icon);
使用
ClassName.this.getResources().getDrawable(R.drawable.icon);
其中ClassName是您的活动名称
也为构造函数执行此操作而不是
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable,this);
使用
HelloItemizedOverlay itemizedoverlay = new HelloItemizedOverlay(drawable,ClassName.this);